>>1273079I use a 3/4 most of the year (I sleep in a hammock at home and backpacking) because I usually sleep curled up in a ball. I’m 6’ tall and during the winter I usually go with a 7/8, which will cover be from shoulders to toes. Temperature wise, I have a full length 0, 7/8 20, and 3/4 40. I sleep hot, so I usually use the 40 down to 30 before I switch